ios – 如何以编程方式更改uiimageview图像

发布时间：2020-12-14 18:56:56 所属栏目：百科来源：网络整理

导读：在我的ios应用程序中,我以编程方式创建uiimageviews, for (int i=0; i20; i++) { productID=[products objectAtIndex:i]; UIButton * button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [button setFrame:CGRectMake(column*197+38,row*350+8,15

在我的ios应用程序中,我以编程方式创建uiimageviews,

for (int i=0; i<20; i++) {

                                   productID=[products objectAtIndex:i];

                                   UIButton * button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
                                   [button setFrame:CGRectMake(column*197+38,row*350+8,159,45)];
                                   //[button setImage:redButtonImage forState:UIControlStateNormal];
                                   [button addTarget:self
                                              action:@selector(buttonAction:)
                                    forControlEvents:UIControlEventTouchUpInside];
                                   button.tag = productID;
                                   [scrollView addSubview:button];



                                   UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(column*197+170,row*350+25,13,13)];
                                   imageView.tag=productID;
                                   UIImage *image = [UIImage imageNamed:@"redImage.png"];
                                   [imageView setImage:image];
                                   [scrollView addSubview:imageView];


                               }

在我的buttonActon中,我想将uiimageview的图像更改为另一个图像.但我不能这样做.谁能帮我？谢谢.

解决方法

试试这样,45)]; //[button setImage:redButtonImage forState:UIControlStateNormal]; [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside]; button.tag = 100+productID; [scrollView addSubview:button]; UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(column*197+170,13)]; imageView.tag=productID; UIImage *image = [UIImage imageNamed:@"redImage.png"]; [imageView setImage:image]; [scrollView addSubview:imageView]; }

将此视图保留在按钮操作方法中,并将imageview标记传递给imgview.tag

UIImageView *img=(UIImageView *)[scrollView viewWithTag:imgview.tag];
    img.image=[UIImage imageNamed:@"name.png"];

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!